@Ani ******
, if heading for CR and staying in a hotel then it’s easy and yes, immigration is usually empty with no one queuing. Took 30 mins to get our ‘retirement’ extension in all. Walked in a straight up to the desk. You should have no issues while there. If not staying in a hotel/hostel then make sure that your address is registered before applying for the extension. Form TM30. CR are quick but efficient and work by the book. Have fun!