(a) A building may be erected, altered or used, and a lot or premises may be used, for any of the following purposes and for no other:
(1) Any use permitted in the R3 Residence District.
(2) A retail store, office, studio, personal service shop, bakery, confectionary, automotive service station, hotel, rooming house, boarding house, tourist house, restaurant, theater, bank, mortuary, newspaper or public printing establishment, public garage or automobile repair shop and public parking lot, not to include an automobile junk yard, and any use of the same general character when authorized as an exception.
Any automotive service station erected with an entrance leading from a Township or State highway shall provide sufficient servicing, stopping and waiting space to accommodate at least five vehicles in each line entirely on the service station property so that none of such vehicles shall stop, extend or encroach onto a public sidewalk or highway.
(3) A residential dwelling when authorized as an exception.
(b) No business whatsoever shall be conducted or maintained that is noxious or offensive by reason of odor, dust, smoke, gas, vibration, percussion, illumination or noise. No internal combustion engine shall be used unless objectionable noise and vibration are eliminated and proper disposition is made of exhaust gases.