MileCheckRest areas
Can you sleep at a rest area in Maryland?
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No. Overnight parking is prohibited and visits are limited to 3 hours.
Cars
3 hours without a permit from the caretaker or State Police.
Trucks
Same 3-hour rule.
Camping and tents
Camping and overnight parking are prohibited.
Signs at a rest area can set a different limit. Follow the posted sign. Turnpike and toll-road service plazas often have their own rules.
Source
COMAR 11.04.07.07 and 11.04.07.11. Read October 15, 2026. This page summarizes the rule. It is not legal advice.