Officers responding to Balboa Court shortly before 7 a.m. found two men asleep in the vehicle and on waking them, determined one was on searchable probation.
While preparing to conduct a search, one of the officers noticed a 9mm handgun under the legs of one of the men and a second 9mm handgun on the floorboard, police said.
The weapons were seized and the men were arrested and booked into the Solano County Jail on several weapons related charges.