Police say they spoke with three men outside a cafe in Main Street, Lithgow shortly before midday on Saturday.

The men are alleged to have told police they were camping nearby and had travelled to the area to ride trail bikes.

Police say a 28-year-old man from Riverstone, a 30-year-old man from Bidwill, and a 33-year-old from Freemans Reach were each issued with penalty infringement notices for $1000 for breaching a stay at home direction.

They were directed to return to Sydney.

In a separate incident, police say they were called to Todds Road, Wisemans Creek, north-west of Oberon, at about 12.30pm on Saturday, following complaints that there was a person there that did not reside on that street.

Officers say they found a 48-year-old woman who had travelled from her home in Kingswood to Oberon.

She was issued with a $1000 penalty infringement notice for breaching a stay at home direction and was ordered to return home to Sydney.

In another incident, officers from Chifley Highway Patrol say they stopped a vehicle on the Great Western Highway at Bowenfels at about 3.45pm on Saturday and spoke with two men inside who said they were collecting power tools that one of the men had purchased online.

Police say the passenger, a 19-year-old Bexley man, said he had come for the drive with his mate to keep him company.

Each were issued with penalty infringement notices for $1000 for breaching a stay at home direction and were directed to return to Sydney.

Finally, Highway Patrol officers say they pulled over a vehicle on the Great Western Highway at Hartley at about 8.20pm on Saturday and spoke with a 34-year-old Northmead woman, who said she was taking medication to a sick relative but did not have the medication in her possession.

She was issued with a $1000 penalty infringement notice for breaching a stay at home direction and was directed to return to Sydney.