General limitations. Signs shall be anchored, supported, or designed as to prevent tipping over and becoming airborne in gusty winds, which reasonably prevents the possibility of signs becoming hazardous to the public health and safety. Signs shall not be illuminated or contain any electrical component. No objects shall be attached to a portable sign such as but not limited to balloons, banners, merchandise, and electrical devices. Portable business signs shall be removed at the daily close of business. These signs are prohibited while the business is closed. In consideration of the benefit the business derives from the display and use of said portable signage, the business shall indemnify and hold harmless the Borough of Sea Bright, its officers, agents and employees from any claim arising out of the presence of the portable sign. Evidence of insurance for property damage and personal liability shall be required naming the Borough of Sea Bright as an additional insured when portable signs are located on Borough property.